/** * Copyright 2014 Comcast Cable Communications Management, LLC * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package com.comcast.viper.flume2storm.zookeeper; /** * Notifies the ZkClient of state changes. These are called in a serial fashion * (by design). */ public interface ZkClientStateListener { /** * Note that the state change as already occurred * * @param previousState * The state of {@link ZkClient} before the transition * @param newState * The state of {@link ZkClient} after the transition */ public void onStateChange(ZkClientState previousState, ZkClientState newState); }